Wideband Self-Calibration Method of Inductive CTs and Verification of Determined Values of Current and Phase Errors at Harmonics for Transformation of Distorted Current [PDF]
Sensors, 2020 Self-calibration of a designed wideband inductive current transformer (CT) was carried out in the ampere-turns condition. This method does not require a reference transducer. The values of current and phase errors at the harmonics of frequencies from 100
Ernest Stano, Michal Kaczmarek
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Calibration of On-Board Energy Measurement Systems Installed in Locomotives for AC Distorted Current and High Voltage Waveforms and Determination of Its Uncertainty Budget [PDF]
Sensors, 2021 Periodic calibrations of Energy Measurement Systems (EMS) installed in locomotives must be carried out to demonstrate the required accuracy established in the EN 50463-2 standard according to European Parliament and Council Directive 2008/57/EC on the ...
Abderrahim Khamlichi +4 more
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Comparative Analysis of Additional Measurement Error Introduced by Inductive Current Transformers, Rogowski Coils and Electronic Current Transducer for Harmonics of Distorted Current [PDF]
SensorsThis paper investigates the accuracy of conventional inductive current transformers (iCTs) and Rogowski coils (RCs) in measuring distorted currents, evaluating compliance with the WB0 (up to the 13th harmonic) and WB1 (up to the 60th harmonic) accuracy ...
Michal Kaczmarek +2 more
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Magnon current generation by dynamical distortion [PDF]
Physical Review B, 2020 The interaction between spin and nanomechanical degrees of freedom attracts interest from the viewpoint of basic science and device applications. We study the magnon current induced by the torsional oscillation of ferromagnetic nanomechanical cantilever.
Junji Fujimoto, Mamoru Matsuo
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Energies, 2023 In this review article, ideas for the development of measuring methods and setups to test inductive instrument transformer accuracy for the transformation of distorted current or voltage are analyzed. This article proposes limiting values for ratio error
Michal Kaczmarek, Ernest Stano
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The Method to Determine the Turns Ratio Correction of the Inductive Current Transformer
Energies, 2021 This paper presents the method for evaluation of the turns ratio correction of the inductive current transformer using the magnetization curves determined at the non-load state and in the load conditions.
Ernest Stano
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Effect of Current Distortion and Unbalanced Loads on Semiconductors Reliability [PDF]
IEEE Access, 2021 This article presents a reliability analysis of a 4-wire grid-tied inverter under different loading conditions, considering unbalanced loads and harmonic distortion in the current consumed. The proposed power converter is used as a case study to assess the impact of current disturbances on the semiconductors’ reliability.
Tomàs Lledó-Ponsati +4 more
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Energies, 2023 Power grids are a combined system where the electrical energy produced by the power plants is transmitted to consumers. This forms a specific interdependence where the recipients have a significant impact on the power quality.
Michal Kaczmarek, Ernest Stano
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Energies, 2022 This paper evaluates an electronic current transformer’s wideband accuracy in the transformation of distorted current harmonics. The tests were performed in the range of frequencies from 50 Hz to 5 kHz.
Michal Kaczmarek +2 more
doaj +1 more source
The Performance of the High-Current Transformer during Operation in the Wide Frequencies Range
Energies, 2022 This paper presents the performance of the 26 kVA inductive high-current transformer (HCT) during operation in the frequencies range of transformed harmonics from 50 Hz to 5 kHz.
Michal Kaczmarek +2 more
doaj +1 more source